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Topic:
Sony VW90 RS232 help
This thread has 6 replies. Displaying all posts.
Post 1 made on Tuesday March 22, 2011 at 13:32
minimivic
Long Time Member
Joined:
Posts:
June 2007
45
Just experimenting with Command fusion, and have Onkyo and Oppo working fine with RS232.
But I cant work out how to use the sony protocall.
[Link: esupport.sony.com]

If anyone can help or have a list of the nessesary codes it would be great
Post 2 made on Tuesday March 22, 2011 at 14:15
Darth Remote
Long Time Member
Joined:
Posts:
December 2009
193
I didn't see the protocol on that link, but I have to admit I didn't really look that long. If it is like every other Sony projector I have controlled via serial it will require a null modem. The settings are 38400, 8, 1, and even. I have never messed with Command fusion but try this for your Power On command A9 17 2E 00 00 00 3F 9A. If you have no luck try using a terminal program from your laptop such as hyper terminal.
OP | Post 3 made on Tuesday March 22, 2011 at 16:48
minimivic
Long Time Member
Joined:
Posts:
June 2007
45
Thanks, I tried but still failed.
Im using hercules to test the commands
Itach rs232,
38400, 8, 1, and even
Known working null modem cable

[Link: avsforum.com]

I can even make the command out on the sony document, see above attachment as a better doc.
Post 4 made on Tuesday March 22, 2011 at 22:08
mark65
Long Time Member
Joined:
Posts:
November 2003
450
Both posts are bad links. I'll use the VW85 protocol.

38400, 8-Even-1

All commands are 8 bytes long.

Byte 0 - Start Code - Always "A9"
Byte 1 - Item Number Upper Byte - From Item List - Table 1
Byte 2 - Item Number Lower Byte - From Item List - Table 1
Byte 3 - Type - Always "00" for setting a value or "01" for querying
Byte 4 - Data Upper Byte - From Item List - Table 2, left 2 digits
Byte 5 - Data Lower Byte - From Item List - Table 2, right 2 digits
Byte 6 - Checksum - Byte 1 to Byte 5 using the "Or" function
Byte 7 - End Code - Always "9A"

Let's try setting the Wide Mode to Zoom.
Item Number Upper Byte= 00
Item Number Lower Byte= 20
Data Upper Byte= 00
Data Lower Byte= 03

So:
Byte 0=A9 -Start Code
Byte 1=00 -Wide Mode Upper Byte
Byte 2=20 -Wide Mode Lower Byte
Byte 3=00 -Set
Byte 4=00 -Zoom Upper Byte
Byte 5=03 -Zoom Lower Byte
Byte 6=23 -Checksum (See below)
Byte 7=9A -End Code


The Checksum is calculated by using the "Or" function. The best way to do this is by using Windows Calculator. You must put the calculator into scientific or programmer mode to show the "Or" function. You must also change from DEC to HEX. The checksum is the result of the Or function from Byte 1 through Byte 5. The "Or" function works just like + or -.

00 or 20 or 00 or 00 or 03 = 23
Post 5 made on Tuesday May 24, 2011 at 22:47
edizzle
Loyal Member
Joined:
Posts:
March 2005
5,916
it drives me nuts when people come here for invaluable advice and dont follow up with results! how did it go did marks advice work?
I love supporting product that supports me!
Post 6 made on Thursday June 16, 2011 at 14:20
onefastchevy
Long Time Member
Joined:
Posts:
July 2002
20
I am having the same issue...

I used marks post (the only thing I wasn't sure how to do was calculate the check sum, THANKS!!) to figure out the commands, but nothing is working

I am using an RTI ZRP-6 on RS232 port 1. Baud is 38400, parity is even, Data bits 8, stop bits 1.

I have tried various delays between characters 0 to 6 miliseconds to no avail.

Any advice?????

Thanks
James
Post 7 made on Thursday June 16, 2011 at 17:56
onefastchevy
Long Time Member
Joined:
Posts:
July 2002
20
Figured it out... RTI and sony transmit on different pins. Needed a null modem cable between them...

So Thus Mark's info was good!

Thanks!!


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